Finding the Fourth Proportional to 245,278.70, 367,971.09 and 74,486.37
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Solution
The fourth proportional to 245,278.70, 367,971.09 and 74,486.37 is: 111,745.66
Step by Step Solution
- Step 1: Write the proportion equation
245,278.70 : 367,971.09 = 74,486.37 : x - Step 2: Convert to fraction form
245,278.70/367,971.09 = 74,486.37/x - Step 3: Cross multiply
245,278.70x = 367,971.09 × 74,486.37 - Step 4: Simplify right side
245,278.70x = 27,408,830,759.04 - Step 5: Solve for x
x = 27,408,830,759.04/245,278.70 - Step 6: Final answer
x = 111,745.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.